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Chapter 4 Vocab
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13
Biology
7th Grade
09/27/2013

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Term
Cell Theory
Definition
The law states that:
1.all living things are made of of one or more cells
2. The cell is the smallest unit of life.
3.All cells come from prexisting cells
Term
Macromolecule
Definition
When several molecules join together.
Term
Lipid
Definition
A macromolecule that does not dizzolve in water.
Term
Proteins
Definition
are long chains of amino acids cells.
Term
Carbohydrate
Definition
a long sugar molecule chain
Term
Nucleic Acid
Definition
Long chains of nucleotides
Term
Cell Membrane
Definition
the flexible covering on the outside of the cell
Term
Cell Wall
Definition
is a stiff structure outside the cell membrane that protects the cell from viruses and other organisms
Term
Cytoplasm
Definition
Term
Cytoskeleton
Definition
Term
organelle
Definition
Term
nucleus
Definition
Term
chloroplast
Definition
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